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Delete du6/station.c

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Jakub Frankovič 2026-04-13 18:37:38 +00:00
parent 4889db4ff5
commit 3c2eb61482
1 changed files with 0 additions and 147 deletions
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147
du6/station.c
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@ -1,147 +0,0 @@
#include "station.h"
#include <stdlib.h>
#include <string.h>
struct station* create_station() {
struct station* st = (struct station*)malloc(sizeof(struct station));
if (st == NULL) {
return NULL;
}
st->tracks = (struct car**)calloc(STATION_SIZE, sizeof(struct car*));
if (st->tracks == NULL) {
free(st);
return NULL;
}
st->track_count = STATION_SIZE;
return st;
}
void destroy_station(struct station* station) {
int i;
if (station == NULL) {
return;
}
for (i = 0; i < station->track_count; i++) {
struct car* current = station->tracks[i];
while (current != NULL) {
struct car* next = current->next;
free(current);
current = next;
}
}
free(station->tracks);
free(station);
}
int select_track(struct station* station, const char* target) {
unsigned long hash = 5381;
const unsigned char* ptr;
if (station == NULL || station->track_count <= 0 || target == NULL) {
return 0;
}
ptr = (const unsigned char*)target;
while (*ptr != '\0') {
hash = ((hash << 5) + hash) + *ptr;
ptr++;
}
return (int)(hash % (unsigned long)station->track_count);
}
void add_target_capacity(struct station* station, const char* target, int capacity) {
int index;
struct car* current;
if (station == NULL || station->tracks == NULL || target == NULL) {
return;
}
index = select_track(station, target);
current = station->tracks[index];
while (current != NULL) {
if (strcmp(current->value, target) == 0) {
current->capacity += capacity;
return;
}
current = current->next;
}
current = (struct car*)malloc(sizeof(struct car));
if (current == NULL) {
return;
}
strncpy(current->value, target, TARGET_SIZE - 1);
current->value[TARGET_SIZE - 1] = '\0';
current->capacity = capacity;
current->next = station->tracks[index];
station->tracks[index] = current;
}
int get_target_capacity(struct station* station, const char* target) {
int index;
struct car* current;
if (station == NULL || station->tracks == NULL || target == NULL) {
return 0;
}
index = select_track(station, target);
current = station->tracks[index];
while (current != NULL) {
if (strcmp(current->value, target) == 0) {
return current->capacity;
}
current = current->next;
}
return 0;
}
int count_targets(struct station* station) {
int i;
int count = 0;
if (station == NULL || station->tracks == NULL) {
return 0;
}
for (i = 0; i < station->track_count; i++) {
struct car* current = station->tracks[i];
while (current != NULL) {
count++;
current = current->next;
}
}
return count;
}
int count_capacity(struct station* station) {
int i;
int sum = 0;
if (station == NULL || station->tracks == NULL) {
return 0;
}
for (i = 0; i < station->track_count; i++) {
struct car* current = station->tracks[i];
while (current != NULL) {
sum += current->capacity;
current = current->next;
}
}
return sum;
}